Home / 18,723,280.40-28,084,920.60-7,359,952.40

Finding the Fourth Proportional to 18,723,280.40, 28,084,920.60 and 7,359,952.40

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Solution

The fourth proportional to 18,723,280.40, 28,084,920.60 and 7,359,952.40 is: 11,039,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,280.40 : 28,084,920.60 = 7,359,952.40 : x
  2. Step 2: Convert to fraction form
    18,723,280.40/28,084,920.60 = 7,359,952.40/x
  3. Step 3: Cross multiply
    18,723,280.40x = 28,084,920.60 × 7,359,952.40
  4. Step 4: Simplify right side
    18,723,280.40x = 206,703,678,773,779.47
  5. Step 5: Solve for x
    x = 206,703,678,773,779.47/18,723,280.40
  6. Step 6: Final answer
    x = 11,039,928.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.